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More improvements in syntax highlighting for comments and strings

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This commit is contained in:
Charles Haley 2022-10-13 13:18:30 +01:00
parent 2da0fe7bf9
commit b3cb7ae6d1
1 changed files with 17 additions and 4 deletions
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21
src/calibre/gui2/dialogs/template_dialog.py
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@ -102,13 +102,13 @@ class TemplateHighlighter(QSyntaxHighlighter):
a("|".join([r"\b%s\b" % constant for constant in self.CONSTANTS_PYTHON]), "constant")
a(r"\bPyQt6\b|\bqt.core\b|\bQt?[A-Z][a-z]\w+\b", "pyqt")
a(r"@\w+(\.\w+)?\b", "decorator")
a(r"""('|").*?\1""", "string")
stringRe = r"""((?:"|'){3}).*?\1"""
stringRe = r'''(["'])(?:(?!\1)[^\\]|\\.)*\1'''
a(stringRe, "string")
self.stringRe = re.compile(stringRe)
self.checkTripleInStringRe = re.compile(r"""((?:"|'){3}).*?\1""")
self.tripleSingleRe = re.compile(r"""'''(?!")""")
self.tripleDoubleRe = re.compile(r'''"""(?!')''')
a(r'#[^\n]*', "comment")
a(
r"\b[+-]?[0-9]+[lL]?\b"
r"|\b[+-]?0[xX][0-9A-Fa-f]+[lL]?\b"
@ -170,6 +170,10 @@ class TemplateHighlighter(QSyntaxHighlighter):
dex = bn * self.BN_FACTOR + pos
return self.paren_pos_map.get(dex, None)
def replace_strings_with_dash(self, mo):
found = mo.group(0)
return '-' * len(found)
def highlightBlock(self, text):
NORMAL, TRIPLESINGLE, TRIPLEDOUBLE = range(3)
@ -198,9 +202,18 @@ class TemplateHighlighter(QSyntaxHighlighter):
else:
self.setFormat(i, length, self.Formats[format_])
# Deal with comments not at the beginning of the line.
if self.for_python and '#' in text:
# Remove any strings from the text before we check for '#'. This way
# we avoid thinking a # inside a string starts a comment.
t = re.sub(self.stringRe, self.replace_strings_with_dash, text)
sharp_pos = t.find('#')
if sharp_pos >= 0: # Do we still have a #?
self.setFormat(sharp_pos, len(text), self.Formats["comment"])
self.setCurrentBlockState(NORMAL)
if self.for_python and self.stringRe.search(text) is None:
if self.for_python and self.checkTripleInStringRe.search(text) is None:
# This is fooled by triple quotes inside single quoted strings
for m, state in (
(self.tripleSingleRe.search(text), TRIPLESINGLE),